Stability of D-amino acid oxidase: denaturation by guanidine hydrochloride and urea.
Indian J Biochem Biophys
;
1996 Oct; 33(5): 357-62
Artigo
em Inglês
| IMSEAR
| ID: sea-27284
ABSTRACT
The guanidine hydrochloride-induced and urea-induced denaturations of swine D-amino acid oxidase (EC 1.4.3.3) dimer were studied by the measurements of the difference absorption spectra in the near-ultra violet region and specific activity. Spectral measurements were made at different pH values (8.3 and 3.2) and temperatures (27, 37 and 47 degrees C). It has been observed that (1), enzyme looses all its activity in concentrated solutions of the denaturants, and (2), the product of urea and guanidine hydrochloride denaturation is only partially unfolded as judged by the measurements of the intrinsic viscosity and exposures of the tyrosyl, tryptophyl and sulphhydryl residues.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Desnaturação Proteica
/
Suínos
/
Termodinâmica
/
Ureia
/
Estabilidade Enzimática
/
Dobramento de Proteína
/
Dimerização
/
Guanidina
/
D-Aminoácido Oxidase
/
Guanidinas
Idioma:
Inglês
Revista:
Indian J Biochem Biophys
Ano de publicação:
1996
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS